A pretty basic Hacklestacker pattern. Tied here as a March Brown; change colors/size to suit your needs.
hook - Dai Riki 320 #12
thread - UTC 140 tan
shuck/post/wing - Congo Hair dun
body - dubbing tan
hackle - grizzly dyed tan
Part 1
mash barb, start thread at mid-shank
fold over a hank of CH (loop to the front); tie in, thin out back end, wrap to bend and trim (gap width past bend)
dub thread/dub abdomen to mid-shank
tie in hackle at base of post
hook loop in the gallows
wrap hackle up (thorax width - leave a hook eye width at the front for wing tie-down) and down; tie off/trim